Megatron is a character from the Transformers franchise, created by toy companies Hasbro and Takara. He is the primary antagonist and leader of the "evil" faction, primarily the Decepticons, in most of the various Transformers universes.
He made sure Peter Griffin, Cleveland Brown and Glenn Quagmire return Carter Pewterschmidt's money on behalf of Joe Swanson in "Ocean's Three and a Half".
Megatron is shown trying to rally the Decepticons into another scheme when he is shot down by Negatron in "Tiegs for Two".
in "A Fistful of Meg", Peter changes the name on Meg's birth certificate to "Megatron".
He is voiced by Frank Welker, reprising the role.